BigBlueButton up to 2.6.11 httpclient.execute server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in BigBlueButton up to 2.6.11. This impacts the function httpclient.execute. This manipulation causes server-side request forgery. This vulnerability appears as CVE-2023-43798. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in BigBlueButton up to 2.6.11. It has been declared as critical. Affected by this vulnerability is the function httpclient.execute. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.

The weakness was presented 10/31/2023 as GHSA-3q22-hph2-cff7. The advisory is shared at github.com. This vulnerability is known as CVE-2023-43798 since 09/22/2023. Technical details are known, but no exploit is available.

Upgrading to version 2.6.12 or 2.7.0-rc.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 5.6
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BigBlueButton 2.6.12/2.7.0-rc.1
Patch: github.com

Timelineinfo

09/22/2023 🔍
10/31/2023 +39 days 🔍
10/31/2023 +0 days 🔍
11/24/2023 +24 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-3q22-hph2-cff7
Status: Confirmed

CVE: CVE-2023-43798 (🔍)
GCVE (CVE): GCVE-0-2023-43798
GCVE (VulDB): GCVE-100-244033

Entryinfo

Created: 10/31/2023 07:57
Updated: 11/24/2023 11:47
Changes: 10/31/2023 07:57 (51), 11/24/2023 11:47 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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